KosciMiler

KosciMiler

The organiser gives 160.5 km and 4,731 m of climbing. The course leaves Jindabyne along the edge of Lake Jindabyne, takes the Thredbo Valley Trail and climbs to the alpine plateau, then passes Perisher, Charlotte Pass, the summit of Mt Kosciuszko, Guthega and Smiggin Holes. It drops back into the Thredbo Valley and finishes with a lap up and over the Thredbo ski area to Friday Flat. Named checkpoints include Guthega Power Station at 99.4 km and again at 109.0 km, the Perisher Ski Tube at 119.1 km, Bullocks Flat at 132.2 km and Keller Plaza at 151.4 km.

The limit is 36 hours, a cutoff pace of 13:18 per kilometre; the organiser expects the first finisher around 7:30 pm on Friday and the last by 3:05 pm on Saturday. Pacers may join from CP6 to CP11, not at Ngarigo Campground, and mandatory gear is checked before the start. Finishers earn four UTMB running stones.

This page covers the 2026 KosciMiler. It starts in the dark at 03:00 and, for anyone still out after Friday evening, runs into a second night, with long stretches on the range where a phone can lose signal. On a Livebib broadcast, family and friends see the runner’s position on the course line, distance covered and a finish estimate for Friday Flat; when no position comes through, it is carried forward along the course and marked as estimated, never as measured. It opens in a browser, no account or app, and the runner decides who gets the link.